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  1. or download this
    $ perl -E '
> $rowTxt = ( q{0123456789} x 2 ) . q{0123};
...
0123456789
0123
$
  2. or download this
    $ perl -E '
> $rowTxt = ( q{0123456789} x 2 ) . q{0123};
...
3456789012
4567890123
$
  3. or download this
    $ perl -E '
> $sa = q{abcdefg};
...
3
6
$